公开(公告)号：US11468704B2

公开(公告)日：2022-10-11

申请号：US17336995

申请日：2021-06-02

Applicant: SAMSUNG DISPLAY CO., LTD.

Inventor： Sun Hwa Lee ,  Mu Kyung Jeon ,  Kyung Hoon Chung

IPC: G06V40/13 ,  H01L27/146 ,  H01L31/12 ,  G06V10/145 ,  G06V10/147

Abstract: A fingerprint sensor includes four transistors and a photodetector. The first transistor connects a second node with a third node based on a voltage of a first node, where the first node corresponding to a first electrode of the photodetector. The second transistor connects the second node with a read-out line based on a scan signal. The third transistor supplies a reset voltage to the first node based on a first reset signal. The fourth transistor connects the first node with the second node based on a second reset signal.

公开(公告)号：US10755608B2

公开(公告)日：2020-08-25

申请号：US16512284

申请日：2019-07-15

Applicant: Samsung Display Co., Ltd.

Inventor： Hee Rim Song ,  Gyung Soon Park ,  Mu Kyung Jeon

IPC: G09G3/20 ,  G09F9/30 ,  G02F1/1333 ,  H01L51/00 ,  H01L27/32

Abstract: A display device may include a first pixel, a second pixel, a first data line electrically connected to the first pixel, a second data line electrically connected to the second pixel and electrically insulated from the first data line, a first signal wire electrically connected to the first data line, a second signal wire electrically connected to the second data line, and a connecting wire electrically connecting the second data line to the second signal wire. The connecting wire may include a first section and a second section. The second section may be directly connected to the first section, may overlap the first pixel, may overlap the first data line, and may be oblique relative to each of the first data line and the second data line in a plan view of the display device.

公开(公告)号：US09721498B2

公开(公告)日：2017-08-01

申请号：US14250568

申请日：2014-04-11

Applicant: SAMSUNG DISPLAY CO., LTD.

Inventor： Mu Kyung Jeon

IPC: G09G3/32 ,  G09G3/3225 ,  H01L27/32

CPC classification number: G09G3/3225 ,  G09G2300/0861 ,  G09G2310/0216 ,  G09G2310/0262 ,  H01L27/3262 ,  H01L27/3265 ,  H01L27/3276

Abstract: An OLED pixel includes a switching transistor to transfer a data signal to a driving transistor. The switching transistor includes a first gate coupled to receive a first scan signal and a second gate coupled to receive a second scan signal received before the first scan signal. A storage capacitor is connected to a first terminal of the driving transistor and the first transistor passes a data signal to a second terminal of the driving transistor based on the first and second scan signals. A compensation transistor and an initialization transistor are also included. The compensation transistor includes first and second gates to receive the first scan signal to establish a signal path between the first terminal and a third terminal of the driving transistor. The initialization transistor establishes a signal path between an initialization voltage and the storage capacitor between its two gates.

公开(公告)号：US20170133637A1

公开(公告)日：2017-05-11

申请号：US15133721

申请日：2016-04-20

Applicant: Samsung Display Co., Ltd.

Inventor： Il-Joo KIM ,  Hee Rim Song ,  Mu Kyung Jeon

IPC: H01L51/52 ,  G02B3/08 ,  G02B19/00 ,  G02B3/00

CPC classification number: H01L51/5275 ,  G02B3/0056 ,  G02B3/0087 ,  G02B3/08 ,  G02B19/0014 ,  G02B19/0066 ,  H01L27/3246 ,  H01L27/3248 ,  H01L27/3258 ,  H01L27/3262 ,  H01L27/3265 ,  H01L27/3276 ,  H01L29/167 ,  H01L29/78675 ,  H01L51/5206

Abstract: A display device including pixels disposed on a substrate, and a lens layer disposed on the substrate, the lens layer including Fresnel lenses respectively corresponding to the pixels. Each of the Fresnel lenses includes Fresnel zones disposed adjacent to each other in a radial direction with respect to a center of a corresponding Fresnel lens, and refractive indices of each of the Fresnel zones change stepwise along the radial direction.

公开(公告)号：US12293714B2

公开(公告)日：2025-05-06

申请号：US18108823

申请日：2023-02-13

Applicant: Samsung Display Co., LTD.

Inventor： Hee Rim Song ,  Hee Jean Park ,  Yu Jin Lee ,  Cheol Gon Lee ,  Mu Kyung Jeon

IPC: G09G3/3233 ,  G06V40/13 ,  H10K39/34 ,  H10K59/131

Abstract: A display device includes display pixels each including a light emitting part including a light emitting element and a pixel driver applying a driving current to the light emitting element, and light sensing pixels each including a light sensing part including an optical element and a sensing driver, the sensing driver applying a sensing current to a sensing line according to a photocurrent of the optical element. The sensing driver includes a first sensing transistor controlling the sensing current flowing through the sensing line according to a voltage of a first electrode of the optical element, and a second sensing transistor initializing the first electrode of the optical element to a first level voltage. A channel layer of the first sensing transistor and a channel layer of the second sensing transistor are made of different materials.

公开(公告)号：US12200982B2

公开(公告)日：2025-01-14

申请号：US18349847

申请日：2023-07-10

Applicant: SAMSUNG DISPLAY CO., LTD.

Inventor： Sun Hwa Lee ,  Mu Kyung Jeon ,  Il Nam Kim ,  Ji Hun Ryu ,  Ki Hyun Pyo

IPC: H01L33/48 ,  G06F3/041 ,  G06V40/13 ,  G09G3/3233 ,  G09G3/3258 ,  H01L25/18 ,  H10K59/126 ,  H10K59/131 ,  G06F3/044 ,  H10K59/35

Abstract: Embodiments of the present disclosure provide a display device comprising: a substrate; a thin film transistor layer on a first surface of the substrate and including a first hole; a light emitting element layer on the thin film transistor layer and including a light emitting element; a first light blocking layer between the substrate and the thin film transistor layer and including a second hole overlapping the first hole in a thickness direction of the substrate; and a second light blocking layer between the thin film transistor layer and the light emitting element layer and including a third hole overlapping the first hole and the second hole in the thickness direction of the substrate.

公开(公告)号：US12061756B2

公开(公告)日：2024-08-13

申请号：US17425366

申请日：2019-11-21

Applicant: SAMSUNG DISPLAY CO., LTD.

Inventor： Sun Hwa Lee ,  Dong Hoon Lee ,  Mu Kyung Jeon

IPC: G06F3/041 ,  G06F3/044 ,  G06F3/047 ,  H10K59/131 ,  H10K59/40

CPC classification number: G06F3/0412 ,  G06F3/0416 ,  G06F3/04164 ,  G06F3/0446 ,  G06F3/0448 ,  G06F3/047 ,  H10K59/131 ,  H10K59/40 ,  G06F2203/04111

Abstract: A touch sensing unit includes first touch electrodes and second touch electrodes disposed on in a touch sensor area which includes a round portion having a curvature. A driving line is connected to a first touch electrode among the first touch electrodes are disposed in the round portion of the touch sensor area. A sensing line is connected to a second touch electrode among the second touch electrodes disposed in the round portion of the touch sensor area. The driving line and the sensing line intersect each other.

公开(公告)号：US11700752B2

公开(公告)日：2023-07-11

申请号：US17929535

申请日：2022-09-02

Applicant: SAMSUNG DISPLAY CO., LTD.

Inventor： Sun Hwa Lee ,  Mu Kyung Jeon ,  Il Nam Kim ,  Ji Hun Ryu ,  Ki Hyun Pyo

IPC: H01L33/48 ,  H10K59/126 ,  H01L25/18 ,  G09G3/3258 ,  G09G3/3233 ,  G06F3/041 ,  G06V40/13 ,  H10K59/131 ,  G06F3/044 ,  H10K59/35

CPC classification number: H10K59/126 ,  G06F3/0412 ,  G06V40/1318 ,  G09G3/3233 ,  G09G3/3258 ,  H01L25/18 ,  H10K59/131 ,  G06F3/0443 ,  G06F3/0446 ,  G09G2310/0202 ,  G09G2360/14 ,  H10K59/353

Abstract: Embodiments of the present disclosure provide a display device comprising: a substrate; a thin film transistor layer on a first surface of the substrate and including a first hole; a light emitting element layer on the thin film transistor layer and including a light emitting element; a first light blocking layer between the substrate and the thin film transistor layer and including a second hole overlapping the first hole in a thickness direction of the substrate; and a second light blocking layer between the thin film transistor layer and the light emitting element layer and including a third hole overlapping the first hole and the second hole in the thickness direction of the substrate.

公开(公告)号：US11694612B2

公开(公告)日：2023-07-04

申请号：US17831323

申请日：2022-06-02

Applicant: Samsung Display Co., Ltd.

Inventor： Cheol Gon Lee ,  Hee Jean Park ,  Hee Rim Song ,  Yu Jin Lee ,  Mu Kyung Jeon

IPC: G09G3/32 ,  G06V40/13

CPC classification number: G09G3/32 ,  G06V40/1318 ,  G09G2300/0413 ,  G09G2300/0809 ,  G09G2330/028

Abstract: A display device includes: pixel circuits arranged in a first direction on each of a first pixel row and a second pixel row; dummy sensor circuits arranged in a predetermined interval between the pixel circuits on the first pixel row; sensor circuits arranged in the interval between the pixel circuits on the second pixel row; light emitting elements disposed on the pixel circuits and connected to each of the pixel circuits; first light receiving elements on at least some of the pixel circuits of the first pixel row and the dummy sensor circuits; and second light receiving elements on at least some of the pixel circuits of the second pixel row and the sensor circuits. One of the sensor circuits is connected to at least two of the first light receiving elements and at least two of the second light receiving elements.

公开(公告)号：US20230177868A1

公开(公告)日：2023-06-08

申请号：US18106231

申请日：2023-02-06

Applicant: Samsung Display Co., LTD.

Inventor： Sun Hwa LEE ,  Ki June Lee ,  Mu Kyung Jeon

IPC: G06V40/13

CPC classification number: G06V40/1318 ,  G06V40/1329 ,  H10K59/40

Abstract: A fingerprint sensor and a display device include a substrate. A circuit element layer is disposed on a first surface of the substrate and includes a semiconductor layer, conductive layers and at least one opening portion. A light emitting element layer is disposed on the circuit element layer and includes at least one light emitting element. A sensor layer is disposed on a second surface of the substrate and includes at least one light sensor corresponding to the opening portion. The opening portion is defined by non-overlapping of the semiconductor layer and the conductive layers, the opening portion has a closed loop shape in plan view, and at least a portion of the closed loop shape includes a curve, or an internal angle of the at least a portion of the closed loop shape is an obtuse angle.